June 3, 2014
Using predictive following error compensation, B&R ACOPOS servo drives feature repetitive control. Embedded in the standard speed control loop, repetitive control adjusts the torque set point of the drive to reduce the periodic portions in the speed or following error. The control algorithm undergoes a constant learning process so changes to the load profile have no effect on the drive.
B&R Industrial Automation Corp.; www.br-automation.com